Nozzle assembly
AssigneeROLLS-ROYCE plc
InventorsCHRISTOPHER THOMAS JOHN SHEAF, MILES THOMAS TRUMPER
Life of this patent
Estimating the term…
Abstract
Varying the fan nozzle flow area in a gas turbine engine allows adjustment of the bypass flow for varying operational conditions such as cruise and take off. However, care must be taken with regard to variation in order not to introduce drag or operational susceptibility to failure. By provision of a deformable member having a contiguous surface, which is deformed laterally from a splitter such as a pylori variation in flow area is achieved. A deformable member will be secured through seals to ensure a smooth surface. Actuation may be through a shape memory alloy material or provision of mechanical actuators to cause deformation of the contiguous surface.
Claims17
A gas turbine engine comprising:
- an engine core;
- and
- a variable area nozzle supported by a splitter that extends from a casing to define a flow area between it and the engine core;
- and
- the assembly with the splitter including a surface, part of the surface is defined by a deformable member that is deformable laterally to vary the flow area.
Dependencies are inferred from the claim text.